By popular demand, we've established a lower parts kit less the trigger group. While our two-stage trigger group is among the best on the market, we realize you may prefer drop-in trigger groups or various other brands out there. This kit allows you to build the rest of your lower using LMT(R) manufactured parts.100% American MadeIncludes: Trigger guard assembly Magazine catch assembly Bolt catch assembly Pivot/Takedown pin assemblies Buffer retaining pin/spring S/A ambidextrous selector assembly